December in Guiyang averages a daily high of 10°C with nights around 3.4°C. Expect roughly 11 wet days totalling 20.6mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Guiyang is August–September.
Based on GUIYANG, CH (1.6km), 1995–2024. 18 years of December data.